Performance Analysis of Single Coil and Multi-Coil with Same Cross-Sectional Area

In a wireless power transmission system used in a dynamic environment, the performance comparison between a single coil system and a multi-coil system with the same cross-sectional area is described by measuring the magnitude and efficiency of the rectified voltage according to the position of the r...

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Bibliographic Details
Main Authors: Kim, Sang-Won, Moon, Jung-Ick, Kim, Seong-Min, Ko, Gwangzeen, Cho, In-Kui
Format: Conference Proceeding
Language:English
Subjects:
Current measurement
Inductance
multi-coil
mutual inductance
Position measurement
Power measurement
single coil
Voltage
Voltage measurement
Wireless charging
Wireless communication
wireless power transfer
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Description
Summary:In a wireless power transmission system used in a dynamic environment, the performance comparison between a single coil system and a multi-coil system with the same cross-sectional area is described by measuring the magnitude and efficiency of the rectified voltage according to the position of the receiving coil. The cross-sectional area and number of turns of the coils are designed identically. Experimental results show that the multi-coil system with optimized current ratio improved the rectified voltage and power transfer efficiency compared to a single coil. However, as the separation distance increases, there is a problem that the power transfer efficiency is lower than that of a single coil.
ISSN:2162-1241
DOI:10.1109/ICTC55196.2022.9952537